import Vue from 'vue'
import VueRouter from 'vue-router'
const Login = () => import('@/components/Login.vue')
const Home = () => import('@/components/Home.vue')
const Welcome = () => import('@/components/Welcome.vue')
const User = () => import('@/components/user/User.vue')
const Rights = () => import('@/components/power/Rights.vue')
const Roles = () => import('@/components/power/Roles.vue')
const Cate = () => import('@/components/goods/Cate.vue')

Vue.use(VueRouter)

const routes = [
  { path: '/', redirect: '/login' },
  { path: '/login', name: 'Login', component: Login },
  {
    path: '/home',
    name: 'Home',
    component: Home,
    redirect: '/welcome',
    children: [
      { path: '/welcome', component: Welcome },
      { path: '/users', component: User },
      { path: '/rights', component: Rights },
      { path: '/roles', component: Roles },
      { path: '/categories', component: Cate },
    ],
  },
]
const router = new VueRouter({ routes })

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to 将要访问的路径
  // from 代表从哪个路径跳转而来
  // next 是一个函数， 表示放行
  // next（） 放行     next('/login') 强制跳转

  if (to.path === '/login') return next()
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})
export default router
